World's oldest astrolabe found, says shipwreck hunter

World's oldest astrolabe found, says shipwreck hunter  The Express Tribune Find out what treasures this ancient Portuguese shipwreck off Oman coast has yielded  Times of Oman Astrolabe found in shipwreck is 'world's oldest navigational tool'  New York Post 'Earliest known marine navigation tool' is uncovered on the shipwrecked Esmeralda that sank off the Oman coast ...  Daily MailFull coverage

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